package com.heima.kafka.sample;

import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.Producer;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.clients.producer.ProducerRecord;

import java.util.Properties;

/**
 * @Description: test
 * @Create by: JJ菜菜
 * @Date: 2022/1/9 15:35
 */

public class ProduceQuickStart {

    public static void main(String[] args) {
        // 1. kafka的配置信息
        Properties properties = new Properties();
        // kafka的连接地址
        properties.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, "192.168.200.130:9209");
        // 发送失败，失败的重试次数
        properties.put(ProducerConfig.RETRIES_CONFIG, 5);

        // 消息key的序列化器
        properties.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer");
        // 消息value的序列化器
        properties.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer");

        // 2. 生产对象
        KafkaProducer<String, String> producer = new KafkaProducer<String, String>(properties);
        // 封装发送消息
        ProducerRecord<String, String> record = new ProducerRecord<>("itheima-topic", "100001", "hello cafca");
        // 3. 发送消息
        producer.send(record);
        // 4. 关闭消息通道必须关闭，否则消息发送不成功
        producer.close();


    }
}
